Shifting hods fob



2 1,575,298 A. WASEMANN 4 SHIFTING RODS FOR HARP ATTACHMENTS Mud 2 1926.

Filed Sept. 20, :1923

"f' paaed;na52,:192e,- f

EDP TATES" PATENT,

" :nnBEa'r wAsEMeNn. or m ma wns'r ViRGINIA. 7

OFFICE.

. surname 3013s iron HARP'AT'1 .Z-iCI-ZIIIVIEN'llS.

, Application filed SeptemberQO; 1923. Serial 1w. 663,725.

' To all whom it may concern: V

VASE-MANN; a 7

the followingis a. specificati611# 'f This invention relates broadly toharp attachm'e'n ts for playe ianos, and more specifically-"tofanimproved shifting device for the felt-carrying frameof such attachments.The primary 'object'of the invention is to provide a" support for thecarrier bar or "whlch has its lower end atta'ched to the bar 4:.

frame upon; gwhich l arefmountedlv the felt J Strips of a harp-attachment; said support be ingshiftable'for moving such carr er frameiIn (lea-nu fgythe' invention "in ass, ret' the bar. flis lclrawings,in'whi'chtlve position. i

" 3 :0; an from operative position and being adwjustablein lengthgtosuit frames located at 20v 7 -the tops of'theroll-boxes.

different "distances from-the front edge :of

erence 'i's fherein; had to the, accompanying Figure 11s a" transversesection of the roll j'lboX-andthe harp attachment of a player ventiony IReferring piano, illustrating theapplication of my in Figure 2 is anenlarged side elevation of the invention, detacl1ed;and'- to saiddrawings, 1 indicates the l .horizontal'top of the usual form of rollbox employed in player pianos 2 a piano wire and sounding hammer."Locatedin front ofaand adjacent to the piano wires 2 is a horizontalbar. 4 to which is'suitably at- I 'tached the 'up per endsof ithefeltsowhich,

in the use of the harp attachment, are interposed between the hammers 3and thewires,

2,;Isaid bar being carried, as ordinarily, by

V {the forwardends of pivoted armsfi and be ing adapted. to be swungvertically -to and from the withdrawn orfiinop'eratlve. posi- --tion;shown"in fulllinesin. Fig. 1 from and to, respectively, the operativeposition indicatedin broken lines in said figure.

Thedevice by means of'which shifting of said bar is: effected, and whichconstitutes the presentinvention, comprises two rod sections 7 "aud..8"whiclihave their 'adjacent. end portions "disposed horizontally inparallel .relation andfattachedfrigidly by a coupling 9. Theouterrodsection 7 has the body portionth'ereof of stra ghtiform and'rotateblyFigure 3-is a detail sectiononj-line33,:

mounted in a horizontal position upon the top '1 chum-r011 box,keeperclips v1-0 being Lherein shown as "mounted upon said top andforming bearing hke retaining membersln' which saidrod section isrotatable. The

body portionof the rod section .8, is likewise straight and horizontallydisposed; The

innerend'portion of said section 8 is formed in crank shape, anintermediate portion-8 being turned. at substantially a right angletothe'body-and a terminalportion"8 being disposed horizontally. Attachedto saidterminal portion is the upper end of a chain 11 i or othersuitable form of suspension device 3 As is obvious, when thecrank-shaped inn'er'end of the rod section 8 occupies the uprightposition shown in Fig. 1, the harp attachment which includes thebar l issupported in elevated inoperative position. 'VVhen, :l1owever,"therod-isrotated to the position indicatedin dotted lines in said figure,

permitted to gravitate to operaand a terminal portion 7, the latterprefferablybeing parallel to the arm 7 and forming a finger piecewhereby the rod is grasped .for effecting rotation thereof. The arm'7which lies closely in front ofthe top 1 of the roll box is of a lengthmaterially greater than the thickness of said top, thus adapting thedevice for rotation between the 7 closely underliesjthe top 1 of the- 1boxy, as, shown in Fig, 3, I. W

The coupling 9 consists of a substantially 'full'line and the dottedline positionsshown in Fig. 3, or throughout the'part of arevocylindrical member having parallelholes- 12 extending diametricallytherethrough for the reception of theparallel body portions of the rodsections 7 and .8. Set screws 13 directed through the opposite ends ofsaid coupling are adapted for adjustment into bearing relation to saidbody portions for maintaining the latter in adjusted positions. As isobvious,'the rod sections may be adjusted to give the rod any lengthrequired. ,A pin or stud 14 carried by'said outer

